Solar Cycle 25, page-46

These are to forces unseen shaping our world.

1 .  How the Solar Cycles have shaped the Lunar Nodal positioning of the Moon .

Unless there is a larger entity having an effect on the Sun - Moon relationship.

What forces are in play?
10.62 yr Avg Solar Cycle  x 7 = 74.4yrs
18.6 yr Lunar Nodal Cycle x 4 = 74.4yrs
Role of Earth Magnetosphere

2. The Arctic Melt cycle is the physical signal  that correlates .... Its 74 years ( 30s-40s' ) since the last Melt was documented.

Nodal influence of Moon on the Arctic have been documented.
https://academic.oup.com/icesjms/article/63/3/401/718604